Dental apparatus



(NoAMoael.)

P. M; OSBRN;` DENTAL APPARATUS.

No. 525,816. Patented Sept. 11,1894.

4211-' 25 6 9a 2l 'I" Z jg 7 a Jttarzzqyes STATES PATENT OFFICE.

FRANCIS M. OSBORN, OF PORT CHESTER, NEW YORK.

' DENTAL APPARATUS.

SPECIFICATION forming part of Letters Patent No. 525,816, datedSeptember 11, 1894. Application tiled June 6,1894. Serial No. 513,628.(No model.)

To aZZ whom it may concern.-

Be it known that I, FRANCIS M. OSBORN, a citizen of the United States,residing at Port Chester, in the county of Westchester and State of NewYork, have invented certain new and useful Improvements in DentalApparatus, of which the following is a specification, reference beinghad to the accompanying drawings.

The present invention relates to mechanism for heating air and water anddelivering the same to the working ends of tools or at the point ofwork. Y

As is well understood in the art of dentistry, water properly heated, aswell as air, is used for various purposes of treatment, as for cleansingor medicating the teeth of a patient when under the operators hands.Usually individual tools have been used for these purposes. Thus, adentist ordinarily has a syringe or similar device for applyingtemperate water to the teeth of a patient; and also he has an air bloweror ejector for the purpose of applying Warm air, medicated or otherwise,to the teeth of a patient. In this connection, it is to be noted thatmuch inconvenience, loss of time and discomfort to the patient, resultfrom the necessity of the alternate use of such tools, and theirpreparation or charging during `moments when the patient is preparedforbeing operated on and at which times the discomfort of his positionis only prolonged by the time taken to prepare or charge the instrumentsto be used.

It is the object of the present invention to combine the various toolsor instruments, or other like or similar means, for applying water, airor medicated air or gases, to the teeth of the patient, with means ofvconnection to suitable sources of air and water as also with valves forcontrolling theexit of the same through the instrument, in such Vmannerand arrangement that the operator may have these instruments at hand atall times-duringoperation, readily charged and in condition for instantuse.

Another object of theinvention is to combine the/sources of air andwater, for supplying said tools, in vone structure so as to be heated bya common source of heat, the one source or tank through or by the heatapplied to the adjoining source or tank.

I have discovered that by combining the Water tank or reservoir with theair tank or reservoir and heating the one through the other, especiallyheating the water tank through the air tank from a common source ofheat,`that the uniformity of heat imparted to the two fluids is betterpreserved than when the two reservoirs'are independently heated and byindependent heating devices. As is well understood in this art,it isdesired to maintain the heat of the Iiuids and gases to be used indental operation at a definite point or degree of temperature, for thepurpose of not shocking the patient when the heated gas, air or duid isapplied to a tooth being operated on. To this end, much nicety ofadjustment of the heating flames has hitherto been necessary, in orderto prevent overheating, and at the same time to preserve an efcientdegree of heat. By combining the reservoirs together as above suggested,and heating the one through the other-or even heating them conjointly,the desired temperature of both can be readily preserved. The body ofwater present will absorb excessive heat from the body of air, so thatthe latter will not become burned or overheated; so, too, if the body ofwater be nearer the heating source, the reservoir of air will absorbheat from the water and can not become overheated. This condition is ofcourse preserved only within reasonable limits, but it is found inexperience, that much saving in time, in attending to the reservoirswhen heated independently, results if the two be joined together as lpropose.

The invention further consists in combining the fluid and gas, or airreservoirs used for supplying dental tools or instruments, in suchmanner that they may be practically in one structure and capable ofbeing heated from one source, and in providing said tanks with flexiblepipes or conduits extending to and connected with tools of various kindsand of such length as is adapted to the free use of the tools in thepractice of dentistry.

Referring to the drawings accompanying this description, Figure 1 is ageneral eleva- IOO tion view of a reservoir apparatus designed for thepurposes above set forth, the machine represented in the left hand ofthis view being a foot-power drill, boring or cutting machine, shown ona reduced scale and illustrating one means of charging lthe air portionof the main reservoir. Fig. 2 is a vertical, central cross-section ofthe reservoir structure on a somewhat enlarged scale. Fig. 3 is anenlarged detailed View of one of the nozzles employed.

Referring to the views in detail, 1 represents a standard containing anadjustable tube 2 capable of being fixed at any desired height by thescrew 3 or other similar locking means. At the upper end of the sliderod 2 and supported thereon, is the bracket 4 bearing a ring 5 whichsupports the main reservoir structure 6 and 7.

8 represents a heating jet which may stand for a gas jet, or Inaystandfor a heatinglamp or other heat producing device adapted to be placedbelow the reservoir and supported in the bracket 4. These reservoirsupporting and heating parts may be of any desired construction orarrangement, the essential point being that they be so constructed as tobe capable of ready movement from one place to another, and to adjustthe reservoir to a height somewhat above the usual height of the head ofa patient when being operated u on.

p6 indicates the water reservoir, and 7, the air reservoir. Thesereservoirs are shown as semi-spherical in form thoughany other suitableform may be employed. The reservoirs are joined in one structure asshown. In the present instance they constitute practically a sphericalstructure. 9 is a diaphragm or partition separating these reservoirs,and 9a is a centrally arranged flue for conducting the heated productsof combustion through the reservoirs. The air reservoiris provided withsuitable exits such as the pipe sockets 10 and 11, to the former ofwhich is attached the llexible tube 12 ending in a nozzle 13, exit fromwhich is controlled by the spring-clamp or other valve device 14 whichnormally pinches the 'tube l2 and holds it closed. Another air pipe 15is similarly connected to the air reservoir and ends in a similar valvecontrolled nozzle such as is on pipe 12. In this pipe 15 is located anauxiliary reservoir 16, which internally is of common construction andis for the purpose of containing a medicating material through or overwhich the air from the main reservoir can pass and become charged orloaded with medicament.

17 is a pipe attached to the air reservoir socket 11, which pipe is forsupplying air to the air reservoir. One means of so supplying the airreservoir may be by the flexible bulb pump 18, which is of usualconstruction and is adapted upon being compressed to force air into theair reservoir and hold the same therein. This bulb may be placed underthe treadle 19 of the drilling or grinding machine j voirs.

shown in Fig. 1, so that when said machine is in operation the airreservoir will be in process of charging. Other means for thus chargingthe air reservoir may be availed of.

The iiuid or Water reservoir 6 is provided with an inlet 20, to which asupply pipe may be attached or through which fluid may be forced to thewater reservoir. 21 is a relief valve of common construction acting tohold the Water in the reservoir tank under slight pressure, but adaptedto readily yield to permit steam or water vapor to escape when at toohigh a pressure. 22 is a pipe extending from this fluid reservoir andendingin a nozzle jet 23 controlled by a proper valve device which maybe the same as shown in Fig. 3,01` of other suitable construction. 24 isanother pipe extending'from socket 25 of the fluid reservoir andattached to the valved nozzle 26, which may be located adjacent to agrinding or drilling tool 27 operated by the foot power machine shown inFig. 1, this being for the purpose of supplying Warm Water directly tothe tool when in operation. Other similar combinations ofairorwaternozzles with tools, are possible and will be readily understood.

The standard 1 of the tank mechanism is -provided with a bracket 28,having holders 29 of spring clamp form, in which may be removably hungthe various nozzles or ends of the tubes attached to the air and Huidreser- By these means, the various instruments for applying air, gas oriiuid during the process of dental manipulation, may be arranged, withineasy reach of the operator. IIe can readily place the reservoir standardin convenient position, it being assumed, of course, that the lamp isproperly adjusted, and the various tools are kept charged and incondition for instantaneous and rapid use. If hot air be required, forexample, the operator has but to take the nozzle 13 and apply it at onceto the place being treated; and the same is true as to the other twoiluids.

In case it be desired to apply hot air, Water, or even medicated air,conjointly with operating upon a tooth, or without the necessity ofremoving the operating tool from oper ative position, any one of thenozzles of the various tubes may be attached to the operating tool, asseen in Fig. 1, so that while the tool is in position, the proper fluidmay be ejected for the purpose of cleansing the parts being operatedupon, or otherwise treating them.

I am aware that it is not new to conduct a fluid to the point of anoperating tool so that the fluid maybe ejected upon the parts beingoperated upon simultaneous with the action of the tool. Also, I make noclaim broadly to dental nozzles which are valve controlled, nor to suchnozzles when attached to a source of Huid pressure.

What I claim as new isi--` 1. A reservoir mechanism for denial useadapted to separately contain different fluids asair and Water, andprovided with means for heating the same, and flexible passages or pipesextending from the separate portions of said reservoir and ending inValve controlled nozzles, substantially as and for the purpose setforth.

2. In combination in a dental reservoir mechanism for heating separatefluids, an air r gas reservoir and a fluid or waterreservoir separatefrom each other but combined in one structure and supported upon atransportable standard, means for heating said reservoirs v carried alsoon said standard, and passages or iexibie pipes eachprovided with avalve controlled nozzle or similar device, substantially as and for thepurpose set forth.

3. In combination in a dental reservoir mechanism for heating separateiuids, a transportable standard carrying two conjoined but separatelyspaced fluid-reservoirs, means for heating the said reservoirs alsosupported from said standard and arranged to heat one reservoir throughthe other, separate pipes or passages for independently charging saidreservoir, iiexible pipes or passages attached to said reservoirs andeach provided with a valve controlled nozzle or similar device wherebythe fluid from said reservoirs may be directed at the will of theoperator, as and for the purposes set forth.

4L. In combination with the reservoir standard l and the reservoirs 6and 7 supported thereon, a heating device also carried on said standard,pipes or passages for delivering the contents of said reservoirs at thepoint of operation, and a bracket or similar supporting device on thestandard for holding said pipes in convenient position for the operator,as and for the purpose set forth.

5. In combination with the herein described transportable reservoirmechanism for heating separate iiuids, means for charging one of saidreservoirs consisting of a pipe or passage as pipe 17 extending fromsaid reservoir to a compression mechanism as pump 18, and the foottreadle or similar mechanism to be Worked by the operator and forrunning the said pump, as and for the purpose set forth.

FRANCIS M. OSBORN.

Witnesses: f

RoBT. F. GAYLoRD, JAMES N. CA'rLoW.

